目前国内外各种水环境中17ß-雌二醇（E2）污染问题突出，生物碳吸附法因吸附容量大、处理效率高而广受青睐，然而用单一的吸附法难以对E2彻底消除及连续去除利用。本研究拟基于生物碳的高导电性和高效吸附特性，提出通过磁场“关-开”式控制将双功能磁性生物碳吸附和低电压电化学氧化相结合的新型E2修复机理，达到对污染水环境中E2的高效连续修复以及磁性生物碳可再生利用的效果。研究具备高导电性和E2高效吸附性的磁性生物碳合成方法的基础上，进行磁性生物碳对E2的吸附、电极表面上的磁控制富集和低电压电化学氧化降解，揭示修复效果、修复机理、以及各种环境影响因素。该研究为揭示吸附法和电化学氧化法相结合连续修复E2污染环境的机理、生物碳的潜能开发、E2污染水体的修复提供理论依据和技术。

The contamination of various water environments by 17ß-estradiol (E2) is serious these days. Biochar adsorption method is well known for high adsorption capacity and treatment efficiency. However, with single adsorption method, the complete E2 elimination and continuous reuse for E2 adsorption are difficult. In this sense, this study, based on the high conductivity and high adsorption properties of biochar, suggests a novel E2 remediation principle by magnetically “on-off” control of the dual-functional magnetic biochar for adsorption and low voltage electrochemical oxidation combined method, and to make the magnetic biochar regenerable for continuous remediation of E2 polluted environmental water. This research would firstly study on the method of synthesizing high conductivity and high E2 adsorption efficiency magnetic biochar, and then perform E2 adsorption with magnetic biochar followed by magnetic controlled concentration of the E2 adsorbed magnetic biochar on the electrode for a low voltage electrochemical degradation. The remediation efficacy, mechanism and various environmental factors effect on the remediation efficacy would also be revealed. This research would provide theoretical evidences and techniques for the adsorption and electrochemical oxidation combined continuous E2 remediation mechanism, for developing potential capability of biochar, and for the continuous remediation of E2 polluted water.